"Unknown error trying to lock file." when opening file in Excel from SharePoint

Anonymous
2023-03-06T19:20:06+00:00

One of my users with Win 10 pro (upto date) is having trouble opening files (xlsx and xlsm) from SharePoint in Excel, they are getting the error "Unknown error trying to lock file." They are running Excel 2016, fully up to date. They were not having an issue Friday.

Tried the same files on SharePoint on other computers and did not get the same error. I tried via another user account on the computer that is having trouble and got the same error. I tried an Office repair, quick and full, which did not help. Teams and Outlook are on this computer and are having no trouble. I was also able to open word files on SharePoint with no issue.

I'm a little stymied any help would be greatly appreciated.

Microsoft 365 and Office | Excel | For business | Windows

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Anonymous
2023-03-30T03:11:11+00:00

After run update as picture the issue is resolved,

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Anonymous
2023-03-29T02:50:55+00:00

Hi All,

Updated, SP525140 was resolved, please check if you still have the issue on your side.

Thanks for your understanding and cooperation! Have a good day.

Sincerely,

Sean | Microsoft Community Moderator

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  1. Anonymous
    2023-03-08T15:15:44+00:00

    Thank you for the feedback, I've opened a case with Microsoft and they are working on it.

    In the meantime I've had luck rolling back office update to Version 2301 (Build 16026.20200

    How to revert to an earlier version of Office - Microsoft Support

    I hope this helps some

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  2. Anonymous
    2023-03-08T13:46:29+00:00

    I an having the same issue on multiple machines with Office 2016.

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  3. Anonymous
    2023-03-08T05:04:42+00:00

    The same error occurred with Excel 2019.

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